Weekly Information about Bright Comets (2000 Nov. 25: South)

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 Updated on November 27, 2000
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Southern Hemisphere.

Please see also the Comet Rendezvous Calendar, Latest Pictures of Comets.

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* C/1999 T1 ( McNaught-Hartley )
It is expected to reach to 7.8 mag in December and January. Appearing at dawn also in the Northern Hemisphere. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  13 11.33  -32  2.9   1.784   1.208    39    8.2     43.5  60.4   2:59 (297, 19)  
Dec.  2  13 31.83  -29 20.9   1.729   1.186    41    8.1     45.2  57.0   2:55 (294, 18)

* 41P/Tuttle-Giacobini-Kresak
KenIchi Kadota, Ageo, Japan, reported that it brightened very rapidly, it was 16.1 mag on Nov. 17 but reached to 12.7 mag on 25. It will be bright and observable visually in December and January. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  12 57.35   -4  5.0   1.603   1.199    48   13.2     64.9 107.3   2:59 (271,  6)  
Dec.  2  13 26.91   -6 18.8   1.563   1.158    47   10.5     66.8 106.5   2:55 (273,  6)

* 73P/Schwassmann-Wachmann 3
It was 10.4 mag on Nov. 23. Although it locates very low in the morning sky, it will be observable as 10 mag until mid December. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  14 27.55   -8 44.5   2.109   1.298    26   11.2     55.7 112.8   2:59 (288, -9)  
Dec.  2  14 52.69  -11 15.3   2.039   1.237    26   10.7     58.8 111.6   2:55 (290, -8)

* C/1999 Y1 ( LINEAR )
It will be observable as 12 mag under good condition until December. Strange tail was observed. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   0 10.95   25 30.2   2.616   3.301   126   12.2     32.9 209.7  20:35 (169, 29)  
Dec.  2   0  3.54   22 16.2   2.698   3.278   117   12.2     29.6 205.6  20:43 (157, 29)

* C/1999 K8 ( LINEAR )
Because it is far away, it keeps brighter than 16 mag until late 2001. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   1 27.75   -8 33.5   3.849   4.566   131   13.5      6.4 202.2  21:08 (180, 64)  
Dec.  2   1 26.91   -9 11.0   3.957   4.589   124   13.6      4.9 193.5  20:43 (178, 64)

* C/1999 T2 ( LINEAR )
Although it will be low around December, it is observable again in 2001 spring as 13.5 mag in good condition. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  16 51.57   28  4.2   3.573   3.037    50   13.6     10.0 154.7  20:35 ( 99,-40)  
Dec.  2  16 53.88   27  6.2   3.588   3.038    49   13.6      8.7 149.2  20:43 ( 94,-46)

* 47P/Ashbrook-Jackson
It will be observable as brighter than 14 mag in the evening sky until December. It will be lower and fainter in January. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  21 12.74  -21 23.1   2.447   2.325    71   13.7     25.0  61.1  20:35 ( 91, 40)  
Dec.  2  21 23.90  -19 56.9   2.519   2.319    67   13.8     26.0  61.4  20:43 ( 89, 34)

* 29P/Schwassmann-Wachmann 1
Not observable. It will appear at dawn in March. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  17 35.10  -29  5.4   6.904   6.002    22   14.0     11.6  89.1  20:35 ( 55,  2)  
Dec.  2  17 41.35  -29  3.9   6.937   5.999    16   14.0     11.8  88.9  20:43 ( 51, -3)

* C/1999 K5 ( LINEAR )
It will be also observable in the Northern Hemisphere after 2001 October, but it will be fainter than 16.5 mag then. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   8  3.53  -74 56.0   3.612   3.528    77   14.1     12.5 261.2   2:59 (355, 50)  
Dec.  2   7 39.77  -75  0.1   3.613   3.554    78   14.1     13.9 272.7   2:55 (  0, 50)

* 71P/Clark
It is not observable at all until 2001 summer when it becomes fainter than 19 mag. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  16 57.22  -25  6.5   2.506   1.560    13   14.2     46.0 100.6  20:35 ( 53, -6)  
Dec.  2  17 20.77  -25 58.0   2.513   1.559    11   14.2     46.2  98.1  20:43 ( 50, -8)

* C/1995 O1 ( Hale-Bopp )
Only southern people can observe it. Northern people can never see it again. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   6 13.30  -79 57.8  12.554  12.382    77   14.4      5.1 237.8   1:57 (  0, 45)  
Dec.  2   6  1.12  -80 14.0  12.610  12.428    77   14.4      5.0 247.3   1:18 (  0, 45)

* C/2000 K2 ( LINEAR )
It keeps brightening even after the perihelion passage and reached to 14 mag. It may be brighter than the ephemeris. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  19 53.84   -2  4.2   2.838   2.479    58   14.6     30.9  93.5  20:35 ( 97, 14)  
Dec.  2  20  8.30   -2 14.0   2.915   2.495    55   14.7     31.1  91.7  20:43 ( 94,  9)

* 110P/Hartley 3
Brightened rapidly and reached to 14 mag visually. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   3 54.79   33 54.2   1.606   2.576   166   14.9     12.3 241.6  23:34 (180, 21)  
Dec.  2   3 48.85   33  9.3   1.600   2.565   165   14.7     12.4 236.1  23:01 (180, 22)

* C/1997 BA6 ( Spacewatch )
It will not be observable soon. But it will appear at dawn as 16.5 mag in 2001 May. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  20 34.44  -28 31.7   5.135   4.739    61   15.0     11.5  34.0  20:35 ( 78, 35)  
Dec.  2  20 38.04  -27 25.9   5.274   4.780    55   15.1     11.7  37.7  20:43 ( 75, 28)

* C/1999 U4 ( Catalina-Skiff )
It will be observable in good condition as 15 mag from autumn to winter. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   2 46.64   52 32.2   4.723   5.559   144   15.3      8.9 278.8  22:26 (180,  2)  
Dec.  2   2 40.08   52 38.4   4.721   5.535   142   15.3      8.3 273.3  21:52 (180,  2)

* C/2000 CT54 ( LINEAR )
Although it reaches to 13.5 mag in 2001 summer, only southern people can observe it. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  15  0.38  -45  0.4   4.567   3.720    27   15.5     20.9 124.1   2:59 (320,  9)  
Dec.  2  15 12.07  -46 22.8   4.512   3.686    29   15.4     21.3 124.1   2:55 (320, 11)

* 2000 DG8
Asteroid with cometary orbit. It will pass the perihelion in January. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   6 30.01   -7 20.6   1.440   2.244   134   15.8     68.6 235.0   2:15 (180, 62)  
Dec.  2   6  1.46  -11 56.0   1.383   2.230   139   15.7     74.8 238.6   1:19 (180, 67)

* 74P/Smirnova-Chernykh
It is observable in good condition as 15 mag from February to April. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  11 36.78    9 16.4   3.727   3.551    72   15.9     13.6 106.7   2:59 (248, 14)  
Dec.  2  11 42.70    8 51.0   3.627   3.550    77   15.8     12.5 105.6   2:55 (245, 18)

* C/2000 U5 ( LINEAR )
New comet. It must be 13 mag in the southern sky in early 2000. Fading now. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   4 32.41    5 19.3   2.749   3.705   163   15.9     21.6 292.2   0:17 (180, 50)  
Dec.  2   4 23.16    6 17.3   2.809   3.767   164   16.0     21.1 293.6  23:35 (180, 49)

* 145P/Shoemaker-Levy 5
It is at best as 16 mag in October and November. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   5 44.93   38 26.8   1.251   2.172   151   16.0     11.4 309.0   1:29 (180, 17)  
Dec.  2   5 39.03   39 11.6   1.252   2.197   157   16.1     12.1 297.7   0:56 (180, 16)

* C/2000 SV74 ( LINEAR )
It will be observable as 14 mag for one year after 2001 autumn. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   1  3.25    6 23.6   5.019   5.749   134   16.6      9.1 283.4  20:44 (180, 49)  
Dec.  2   0 59.38    6 39.6   5.068   5.705   126   16.6      8.0 287.9  20:43 (168, 48)

* 17P/Holmes
Although it has passed the perihelion, the fading is slower than expected and it still keeps 16.5 mag. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   2 24.46   46 10.0   1.702   2.589   147   16.7     11.0 226.4  22:04 (180,  9)  
Dec.  2   2 19.91   45 13.2   1.751   2.615   144   16.8     10.2 213.4  21:33 (180, 10)

* P/2000 S1 ( Skiff )
It will be fainter than 18 mag in January. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   0  5.13   -5 29.4   2.177   2.754   115   16.8     11.7  18.1  20:35 (156, 58)  
Dec.  2   0  7.35   -4 10.8   2.286   2.780   109   17.0     12.7  27.1  20:43 (144, 54)

* C/1999 H3 ( LINEAR )
The condition is good in winter and spring, but it is fading out. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  11 14.65   10 16.6   5.509   5.382    77   17.0      3.9 214.9   2:59 (243, 18)  
Dec.  2  11 13.30    9 55.9   5.427   5.426    84   17.0      4.4 232.1   2:55 (239, 22)

* 97P/Metcalf-Brewington
The condition is good until late December, but it reaches to 17.5 mag at best. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   0  4.05   -4 31.4   2.219   2.796   116   17.4      5.7 114.0  20:35 (157, 57)  
Dec.  2   0  7.00   -4 42.8   2.290   2.779   109   17.5      7.5  97.4  20:43 (143, 54)

* 65P/Gunn
Although it is around the aphelion now, it is observable as 17 mag in good condition from December to March. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   8 32.44   27 24.6   3.921   4.484   119   17.6      3.0 343.9   2:59 (199, 25)  
Dec.  2   8 31.57   27 46.0   3.820   4.474   126   17.5      4.1 322.7   2:55 (193, 26)

* P/1999 WJ7 ( Korlevic )
It will be 17.5 mag until March. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  10 22.88    8 34.8   3.385   3.503    88   17.6      9.4 116.4   2:59 (235, 28)  
Dec.  2  10 26.48    8  7.5   3.297   3.518    94   17.6      7.7 117.9   2:55 (231, 32)

* 70P/Kojima
Not yet observed in this return. It reches to 17.5 mag at best in December and January. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  11 50.33    4 27.4   2.262   2.085    67   17.6     28.0 107.3   2:59 (254, 15)  
Dec.  2  12  2.56    3 31.1   2.205   2.101    70   17.6     26.7 106.8   2:55 (253, 17)

* P/1999 XN120 ( Catalina )
The condition is good in January and February, but it reaches to 17.5 mag at best. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   9 29.45   12 56.0   3.054   3.406   102   17.7      6.2 121.7   2:59 (220, 32)  
Dec.  2   9 31.54   12 35.0   2.964   3.414   108   17.7      4.4 128.7   2:55 (214, 35)

* 24P/Schaumasse
It will reach to 10 mag in 2001 April and May. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25   1 56.02   -0 51.2   1.363   2.225   141   18.1     15.6 275.3  21:36 (180, 56)  
Dec.  2   1 49.39   -0 34.6   1.362   2.167   134   17.7     13.2 284.5  21:02 (180, 56)

* C/2000 O1 ( Koehn )
Fading gradually. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 25  22 50.05   29 52.7   5.890   6.293   109   17.8     10.8 212.6  20:35 (152, 19)  
Dec.  2  22 47.32   28 51.5   6.011   6.310   103   17.9      9.5 207.6  20:43 (144, 16)

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